Designed for testing 12-volt actuator switching circuits, the Noid Light Set from Laser Tools emits a bright LED light during automotive diagnostics. Features and Benefits 4mm female 'banana' style sockets are compatible with any 4mm male 'banana' style plugs Universal-sized probe pins for connectivity Visual LED light allows for quick and easy testing Typical Applications Petrol injector testing Ignition LT circuits Relay switching circuits Warnings Do not use on high voltage diesel injectors Only connect in parallel; series connections will damage the Noid light